Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7083137 | Film winding method, film winding apparatus, and film manufacturing apparatus | Kenji Watanabe, Fujio Kuwabara | 2006-08-01 |
| 6755371 | Film winding method, film winding apparatus, and film manufacturing apparatus | Kenji Watanabe, Fujio Kuwabara | 2004-06-29 |